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here's a funny one. I borrowed a 20x9 rim with 5.5" of backspacing and it clears BARELY. I can slide a couple sheets of paper in between the tire and the quarter panel. Im going to order the 8.5s in the same backspace and see how it went.

I know I keep pulling up old posts but, for the guy who wanted to run the 20" with the 8.5 backspace and only had a few MM worth of room between the quarter and the tire. You might want to think about the fact that tires balloon and swell with heat and rotation so if you drive on a tire that will barely rub when it's sitting then when the tire heats up and expands it will eventually rub and "flake" the rubber off the tread of the tire. Just my .02 worth...

Originally posted by 85Jimmy I know I keep pulling up old posts but, for the guy who wanted to run the 20" with the 8.5 backspace and only had a few MM worth of room between the quarter and the tire. You might want to think about the fact that tires balloon and swell with heat and rotation so if you drive on a tire that will barely rub when it's sitting then when the tire heats up and expands it will eventually rub and "flake" the rubber off the tread of the tire. Just my .02 worth...

I think hector ran those wheels and is now fully bagged with no problems.

I dont think anyone would run a setup that allowed only a few mm to clear for safety reasons, let alone leave a small enough gap that would close up as the wheel "swelled" as you call it.

and not many drive 70+ with the front/rear all the way down for a long period of time anyhow.

Heres a very dimunitive update to the thread as well.

If you are a few mm from clearing a specific wheel many better wheel shops will be able to shave a bit off the mounting area of most wheels. Its not very costly and allows you to run your selected wheel with no problems.

Originally posted by FabianSS357 I dont think anyone would run a setup that allowed only a few mm to clear for safety reasons, let alone leave a small enough gap that would close up as the wheel "swelled" as you call it.

and not many drive 70+ with the front/rear all the way down for a long period of time anyhow.

The only thing I can say to that: There are people like that in this world. Don't doubt that for a second.....

Plus, even if you drove with the front/ rear up, the tire still expands with the friction between the contact patch and the road. Therefor, when you let it down again to cruise, it would rub the fenderwell untill it gradually lost the heat and shrank back to it's normal size under slower driving conditions.

I spent night after night after night doing research and reading and measuring before finally placing that order. I guess I did something right because now I can stick my hand between the tire and the quarter panel and I'm still about 3/4" away from the 4-link bars. I ended up going with a +35mm offset.

Thanks for the concern though about the sidewall, I did run into that a few times when searching through old posts on various forums

Originally posted by ZZ4Blazer Um no. 14MM offset on an 8.5" wheel would have just over 5 1/4" BS. That is way too much on a 2wd. For the front, on an 8.5" wheel zero offset would probably be the best. Thatd be 4.75" BS.

Having a wider wheel like that, and being bagged, your gonna have some rubbing. No way around that.

thanks jim, i dont know much about wheels but i knew 14mm offset was more like 4wd. i guess i will look for a 8" wheel with like a 0-3MM offset.

good information, im still left a little confused. Like above, i was under the impression that a +15mm offset is for a 4x4 and the lower the better for a 2wd. Im about to go from 20x9s to preferably 22x8 but probably 9 or 9.5 width wise with a +15mm. sound right?